Hans Sydow

Ophiostoma is a genus of fungi within the family Ophiostomataceae. It was circumscribed in 1919 by mycologists Hans Sydow and Paul Sydow. Note the former type species of Ophiostoma piliferum (Fr.) Syd. & P. Syd. (1919) is now Ceratocystis pilifera, Ceratocystidaceae family. The genus has a cosmopolitan distribution worldwide, except for central Asia, northern Africa and Russia.

Rhabdocline is a genus of fungi in the family Hemiphacidiaceae. In 2010, the genus contained 3 species. Meria and Rhabdogloeum are anamorphs.

Puccinia melanocephala is a fungus and plant pathogen, it is the causal agent of sugarcane rust. It was originally found on the leaves of a species of Arundinaria (cane) in Assam, India. This pathogen was found to also affect multiple species of sugarcane, including Saccharum spontaneum or wild sugarcane, Saccharum robustum, and the most commonly cultivated species Saccharum officinarum. Puccinia melanocephala can also infect other member of the family Poaceae, including some species of bamboo such as Bambusa vulgaris. The first symptoms of sugarcane rust are elongate, yellow-colored leaf

The Polystomellaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes. GBIF lists the following accepted genera; Coscinopeltis (1) Dermatodothella Viégas, 1944 (1) Dothidella Speg., 1880 (36) Dothithyriella F.von Höhnel, 1918 (1) Marchalia P.A.Saccardo, 1889 (1) Munkiella Spegazzini, 1885 (1) Parastigmatea Doidge, 1921 (7) Pluriporus F.Stevens & R.W.Ryan (1) Polystomella (6) Note: Figures in brackets = how many species per genus

Entoleuca is a genus of fungi in the family Xylariaceae.

Coniella diplodiella is a plant pathogen.

Yatesula is a genus of fungi in the family Chaetothyriaceae.

Teratosphaeria is a genus of fungi in the family Teratosphaeriaceae; according to the 2007 Outline of Ascomycota, it was placed in the Phaeosphaeriaceae, but the placement within this family was uncertain. It was confirmed in 2020, within Teratosphaeriaceae by Wijayawardene et al. 2020. Species Teratosphaeria zuluensis (formerly Coniothyrium zuluense) is found on Eucalyptus camaldulensis in Ethiopia causing stem cankers.

Rhabdocline pseudotsugae is a fungal plant pathogen. The pathogen, along with Rhabdocline weirii causes Rhabdocline needlecast; R. weirii only affects Douglas-fir trees. The disease causes the needles of the tree to discolor and eventually fall from the tree. It was originally common to the Rocky Mountain states of the United States but has since spread to Europe. Infections usually start in the spring or early summer and can change the color of the foliage to a variety of hues. The fungus produces apothecia that are normally found on the underside of needles but they also occur on the

Lichenoconium pyxidatae is a species of lichenicolous fungus belonging to the class Dothideomycetes. It has a Holarctic distribution being found in Alaska and various parts of Russia, including Siberia, Franz Josef Land, Novaya Zemlya and Wrangel Island.

Lichenoconium is a genus of lichenicolous (lichen-dwelling) fungi belonging to the family Lichenoconiaceae. The genus was circumscribed by Franz Petrak and Hans Sydow in 1927, with Lichenoconium lichenicola assigned as the type species.

Eremothecella is a genus of lichenized fungi in the family Arthoniaceae. The genus is widespread in tropical areas.

Entyloma dahliae is a species of smut fungus in the family Entylomataceae. It is the causative agent of Dahlia leaf smut. The species was described in 1912 by Hans Sydow and Paul Sydow.

Echidnodes is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.

Auerswaldiella is a genus of fungi in the family Botryosphaeriaceae. According to the Dictionary of the Fungi, there are four species, widespread in tropical regions.

Xenomeris is a genus of fungi in the family Venturiaceae.

Xenolophium is a genus of fungi in the family Melanommataceae.

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Uleodothis is a genus of fungi in the family Venturiaceae. The genus was circumscribed by Ferdinand Theissen and Hans Sydow in Ann. Mycol. vol.13 on page 305 in 1915. The genus name of Uleodothis is in honour of Ernst Heinrich Georg Ule (1854–1915), who was a German botanist and plant collector.

Thyriopsis is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.

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